aaa110 Does any body know how I can calculate the accuracy (e.s.d) of Crystallite size by Topas?? using do_errors give unreasonable results so that the esd is bigger than crystallite size.
vdlee aaa110 wrote Does any body know how I can calculate the accuracy (e.s.d) of lattice parameter by Topas? Just with 'do_errors' Arie
alancoelho aaa10 You will get large errors for large crystalsThe change in peak shape is dependent on the size of the crystal; the larger the crystal the smaller the change in shape. An infinitely large will produce no broadening and the error will be infinite. cheers alan
mabied Hi Is it possible to calculate crystallite size of every phase individually during Rietveld quantitative refinement? I inserted the macro below after every Str but gave the same value LVol_FWHM_CS_G_L(1, 43.28263`_6.20412, 0.89, 48.35977`_6.98846, csgc, 71.54538`_12.54335, cslc, 134.78335`_33.19208) Hopefully to receive your advice Thanks Mabied